Hi, So recently I won an ebay action for this very dirty model F AT for a very nice price and I was wondering if anyone know of a seller for keycaps. At the moment im just substituting keycaps from my xt model f and it works fine, but im hoping to get it looking a little better than it does now.

Keycaps are interchangeable between the Model M and F. But if you buy them from Unicomp piecemeal, you will get mismatched fonts. You're better off buying an entire Model M from them and using the keycaps (at $84 they are a steal). Or buy a broken Model M on eBay as Wolf123rt suggested.